All that's really good about GTA 5 is the graphics and presentation.
Sleeping Dogs is still better, all things considered:
1. Better hand to hand and melee combat, which means among other things:
a. You can counterattack.
b. You can throw people.
c. You can break your enemies? bones.
d. You can tackle people? without looking like a retard.
2. Better story, makes you actually give a damn about what happens.
3. Protagonist isn?t some pathetic, despicable loser, but a badass you can respect
4. More advanced skill/perk progression system.
5. You can access your vehicles from garages in any area of the map right from the start.
6. Valet guy?s not an idiot, like the mechanic in GTA 5.
7. You can hijack moving vehicles by leaping onto them from your own.
8. You can ram enemy vehicles off the road with the press of a button and analog stick.
9. You can use your phone while getting in and out of your vehicle and driving.
10. You can save outfits in your wardrobe, making it easy to choose what to wear.
11. Food/drinks give temporary boosts to your health regeneration, physical strength, etc.
12. You can shoot while jumping over objects and out of moving vehicles (?bullet time? optional)
13. No disturbing missions where you have to torture innocent people to progress the story.
14. No nudity or overly explicit voiceovers for prostitutes, other creepy stuff like that.
15. Vehicle damage. You can't keep getting into collisions without destroying your vehicle.
16. No hand-holding in general (e.g., can't flip your car back on its wheels with the analog).
17. You can buy a vehicle, lose/destroy it, and return to your garage for another one.
18. You can gamble, in more interesting ways than joining the lame stock market.
19. Hong Kong is a breath of fresh air, as opposed to yet another recycled map.
20. You can own more vehicles at once, and there?s no chance of them disappearing.
21. Better ambiance. Can't walk 10 ft. in Los Santos without being inexplicably antagonized.
22. Better rewards for collectibles, such as max health increases and unlocked apparel.
23. Cops aren't psychic. If you kill someone where they can't see, they don't know about it.
24. You can listen to whatever station you want WHENever you want (no Trevor or loss of signal).
23. You can change objectives (where your GPS points you to) with the press of a button.
24. You can take a human shield.
25. You can disarm opponents and use their weapon against them.
26. You can put people in your trunk and drive around looking for the perfect place to...
27. ...use the environment to kill them in unique ways.
28. Better parkour. The button you run with is the same button you climb/jump with
29. Clothes and accessories can give you experience gain bonuses.
30. More enterable buildings, believe it or not!
31. Takes a considerably shorter time to look at your map and set waypoints manually.
32. You can change objectives (where your GPS points you to with the press of a button).
33. You don?t have to ?play the mini-map?, because the GPS puts arrows on the road itself.
34. There are more clubs, and they actually look better in Sleeping Dogs, which is just, sad.
35. You can get weapons from the back of almost any car, including guns from police cars
36. Two buttons on the d-pad to change your radio station with, instead of just one.
37. Ability to turn your radio volume up and down without going into settings.
38. There?s a martial arts tournament-style fight club.
39. You sprint by holding a button down, not repeatedly tapping it like a lunatic.
40. Absolutely zero missable missions/random events.
I'm sure I missed something, but I think I made my point